论文标题
部分可观测时空混沌系统的无模型预测
Effects of tidal charge on magnetic reconnection and energy extraction from spinning braneworld black hole
论文作者
论文摘要
最近的研究表明，磁重新连接可以作为从快速旋转黑洞中提取能量的有效机制。在本文中，我们考虑了潮汐电荷对通过磁性旋转Braneworld黑洞背景的磁重新连接的能量提取的影响。随着潮汐电荷的增加，我们发现位于无穷大的观察者的加速等离子体的能量和减速等离子体减小。为了达到从黑洞中提取净能量的目的，减速的等离子体应承受负能量。然后，我们观察到通过磁重新连接的能量提取的功率会以潮汐电荷生长。同时，效率也随着潮汐电荷的增加而提高，表明带正电荷的旋转的Braneworld黑洞比Kerr Black Hole更有效。与Blandford-Znajek机制相比，磁重新连接过程应具有较高的潮汐电荷功率。这些结果表明，潮汐电荷通过磁重新连接过程对能量提取具有显着影响。
Recent study shows that the magnetic reconnection can serve as an efficient mechanism to extract energy from rapidly spinning black holes. In this paper, we consider the effects of the tidal charge on the energy extraction via the magnetic reconnection in the backgrounds of a spinning braneworld black hole. With the increase of the tidal charge, we find that both the energies of the accelerated plasma and decelerated plasma decrease for the observer located at infinity. To achieve the purpose extracting the net energy from the black hole, the decelerated plasma should take negative energy. Then we observe that the power of the energy extraction via the magnetic reconnection grows with the tidal charge. Meanwhile, the efficiency also increases with the tidal charge indicating that the spinning braneworld black hole with positive tidal charge is more efficient than the Kerr black hole. Compared with the Blandford-Znajek mechanism, the magnetic reconnection process shall have a higher power for positive tidal charge. These results indicate that the tidal charge has a significant effect on the energy extraction via the magnetic reconnection process.
